MP_DEVICE = 'XRT_MULTI_PROCESSING_DEVICE'
LOCAL_WORKER = 'XRT_LOCAL_WORKER'
TPU_CONFIG = 'XRT_TPU_CONFIG'
TPUVM_MODE = 'TPUVM_MODE'
SERVICE_ADDRESS = 'XRT_MESH_SERVICE_ADDRESS'
DEVICE_MAP = 'XRT_DEVICE_MAP'
WORKERS = 'XRT_WORKERS'
LOCAL_ORDINAL = 'XRT_SHARD_LOCAL_ORDINAL'
ORDINAL = 'XRT_SHARD_ORDINAL'
WORLD_SIZE = 'XRT_SHARD_WORLD_SIZE'
HOST_WORLD_SIZE = 'XRT_HOST_WORLD_SIZE'
HOST_ORDINAL = 'XRT_HOST_ORDINAL'
TORCH_DIST_METHOD = 'XRT_TORCH_DIST_METHOD'
TORCH_DIST_ROOT = 'XRT_TORCH_DIST_ROOT'
TPU_NUM_DEVICES = 'TPU_NUM_DEVICES'
GPU_NUM_DEVICES = 'GPU_NUM_DEVICES'
CPU_NUM_DEVICES = 'CPU_NUM_DEVICES'
CLOUD_TPU_TASK_ID = 'CLOUD_TPU_TASK_ID'
TPU_HOST_BOUNDS = 'TPU_HOST_BOUNDS'
TPU_CHIPS_PER_HOST_BOUNDS = 'TPU_CHIPS_PER_HOST_BOUNDS'
TPU_MESH_CTLER_ADDR = 'TPU_MESH_CONTROLLER_ADDRESS'
TPU_MESH_CTLER_PORT = 'TPU_MESH_CONTROLLER_PORT'
